Abstract: A device for preventing the eyes from being dazzled by the lights of an oncoming vehicle comprises a spectacle-type frame which carries anti-dazzle lenses having parallel, non-transparent, light-intercepting layers which are inclined forwardly and downwardly. The angular position of the lenses can be adjusted about a horizontal axis to provide the required anti-dazzle effect.

Abstract: A fluid flow device comprises a rotor housed in a casing having slot-like intake and outlet openings. Groups of such devices can be used to form an aircraft propulsion system by drawing-in air from above through the intake openings and forcing the air downwardly through the outlet openings to provide lift and horizontal thrust, the effect being similar to that produced by the wing of a bird.

Abstract: A bottle-shaped liquid container has a body made up of three angularly spaced lobes of cylindrical form which merge into a bottle-neck portion of the container. The container which, for example, may contain wine, can be picked up by hand by gripping any one of the lobes. To facilitate this gripping, surface roughening is provided down the lobe sides. The roughening can take the form of raised indicia providing information on the liquid held in the container. The lobes give stability to the container both when upright and when on its side.